H. steam information – American Dryer Corp. AD/ML-310 User Manual
Page 34
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American Dryer Corp.
113217 - 5
H. STEAM INFORMATION
It is your responsibility to have ALL steam plumbing connections made by a qualified professional to ensure that the
installation is adequate and conforms with local and state regulations or codes.
IMPORTANT: Failure to comply with the requirements stipulated in this manual can result in
component failure, which will VOID THE WARRANTY.
NOTE: The dryer is manufactured with a pneumatic (piston) damper system, which requires an external
supply of clean, dry, and regulated air (80 psi ± 10 psi [5.51 bar ± 0.68 bar]).
1. Steam Coil pH Level
The normal for copper type steam coils must be maintained between a value of 8.5 to 9.5. For steel type steam
coils the pH level must be maintained between a value of 9.5 to 10.5. These limits are set to limit the acid attack
of the steam coils.
IMPORTANT: Coil failure due to improper pH level will VOID THE WARRANTY.
2. Steam Requirements – High Pressure
Inlet --------- 2” supply line connection
Return ------ 1-1/4” return line connection
Shaded areas are stated in metric equivalents
* The minimum operating pressure for optimum results is 100 psig (689.47 kPa).
3. Installation Instructions
To ensure that adequate supply of steam is provided, be sure that the steam supply and steam return lines are sized
and laid out as stipulated in this manual. Inadequate steam supply and steam return lines or improper steam
plumbing will result in poor performance and can cause component failure. Clean, dry, regulated steam must be
provided to the dryer.
IMPORTANT: Steam coil failure due to water hammer by wet steam will VOID THE WARRANTY.
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